Metonic cycle

简明释义

默冬章

英英释义

例句

1.The Metonic cycle (梅托尼周期) consists of 19 years, which includes 12 common years and 7 leap years.

梅托尼周期（Metonic cycle）由19年组成，其中包括12个平年和7个闰年。

2.The Jewish calendar is based on the Metonic cycle (梅托尼周期), which ensures that festivals remain in the correct seasons.

犹太历基于梅托尼周期（Metonic cycle），确保节日保持在正确的季节。

3.The ancient Greeks used the Metonic cycle (梅托尼周期) to predict eclipses and align their calendars.

古希腊人利用梅托尼周期（Metonic cycle）来预测日食和调整他们的日历。

4.In astronomy, the Metonic cycle (梅托尼周期) helps in understanding the relationship between the solar year and lunar months.

在天文学中，梅托尼周期（Metonic cycle）有助于理解太阳年与阴历月之间的关系。

5.Understanding the Metonic cycle (梅托尼周期) is essential for calculating the dates of Easter each year.

理解梅托尼周期（Metonic cycle）对于计算每年的复活节日期至关重要。

作文

The concept of the Metonic cycle is a fascinating aspect of astronomy and timekeeping that has significant historical importance. Named after the ancient Greek astronomer Meton of Athens, who discovered this cycle around 432 BC, the Metonic cycle is a period of 19 years in which the phases of the moon repeat on the same days of the year. This remarkable phenomenon occurs because 19 solar years are approximately equal to 235 lunar months. Thus, after 19 years, the new moons and full moons fall on the same days of the year, making it an essential tool for various calendars, particularly the Jewish calendar.Understanding the Metonic cycle allows us to appreciate how ancient civilizations managed their agricultural and religious activities. For example, many traditional festivals and rituals were tied to lunar phases, and the ability to predict these cycles was crucial for planning purposes. The Jewish calendar, which is lunisolar, relies heavily on the Metonic cycle to ensure that its holidays align with the appropriate seasons. This alignment is vital for maintaining the cultural and agricultural significance of these events.Moreover, the Metonic cycle illustrates the intricate relationship between the sun and the moon. While the solar year is about 365.24 days long, a lunar month averages about 29.53 days. This discrepancy leads to a drift in the lunar calendar if not corrected periodically. The Metonic cycle provides a solution by allowing for the addition of leap months to synchronize the lunar calendar with the solar year. This method of intercalation has been used in various cultures throughout history, showcasing the universal need to harmonize different timekeeping systems.In modern times, the Metonic cycle continues to influence our understanding of time. It serves as a foundation for many contemporary calendars, including the Gregorian calendar, which is predominantly used today. Although the Gregorian calendar is primarily solar, it incorporates elements from the Metonic cycle to determine the date of Easter, which is celebrated on the first Sunday after the first full moon following the vernal equinox. This connection highlights the enduring legacy of Meton's discovery and its relevance even in our technologically advanced society.Furthermore, the Metonic cycle has implications beyond just calendars; it also intersects with fields such as astronomy and mathematics. The study of celestial bodies and their movements relies on precise calculations, and understanding cycles like the Metonic cycle is crucial for astronomers. It helps them predict eclipses, plan observations, and understand the dynamics of our solar system.In conclusion, the Metonic cycle is a significant astronomical phenomenon that has shaped the way we measure time and understand lunar phases. Its historical applications in various calendars demonstrate its importance in agriculture and religious practices, while its continued relevance in modern timekeeping highlights the lasting impact of ancient discoveries. By exploring the Metonic cycle, we gain insight into the fundamental relationship between the sun and the moon, as well as the intricate systems we have developed to navigate the passage of time.

“Metonic cycle”（梅托尼周期）的概念是天文学和时间计算中一个迷人的方面，具有重要的历史意义。这个周期以古希腊天文学家雅典的梅托恩命名，他在公元前432年左右发现了这个周期。Metonic cycle是一个19年的周期，其中月相在同一年的同一天重复。这一显著现象发生的原因是19个太阳年大约等于235个阴历月。因此，在19年后，新月和满月会落在同一年的同一天，这使得它成为各种日历的重要工具，特别是犹太历。理解Metonic cycle可以让我们欣赏古代文明如何管理他们的农业和宗教活动。例如，许多传统节日和仪式都与月相有关，而能够预测这些周期对计划至关重要。犹太历是一个阴阳历，严重依赖于Metonic cycle以确保其节日与适当的季节保持一致。这种对齐对于保持这些事件的文化和农业意义至关重要。此外，Metonic cycle展示了太阳和月亮之间复杂的关系。虽然太阳年大约为365.24天，但一个阴历月的平均长度约为29.53天。这种差异导致如果不定期纠正，阴历会出现漂移。Metonic cycle提供了解决方案，通过在阴历中增加闰月来同步阴历和阳历。这种插入法在历史上被各种文化使用，展示了协调不同时间计算系统的普遍需求。在现代，Metonic cycle继续影响我们对时间的理解。它为许多当代日历提供了基础，包括今天主要使用的格里历。尽管格里历主要是太阳历，但它结合了Metonic cycle的元素，以确定复活节的日期，即在春分后的第一个满月后的第一个星期日庆祝。这一联系突显了梅托恩发现的持久遗产及其在我们科技先进的社会中的相关性。此外，Metonic cycle不仅仅在日历中有影响，它还与天文学和数学等领域交叉。对天体及其运动的研究依赖于精确的计算，而理解像Metonic cycle这样的周期对天文学家至关重要。它帮助他们预测日食、规划观测以及理解我们太阳系的动态。总之，Metonic cycle是一个重要的天文现象，塑造了我们测量时间和理解月相的方式。它在各种日历中的历史应用展示了它在农业和宗教实践中的重要性，而它在现代时间计算中的持续相关性突显了古代发现的持久影响。通过探索Metonic cycle，我们获得了对太阳和月亮之间基本关系的洞察，以及我们为导航时间的流逝而发展出的复杂系统。